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authorGregory Maxwell <greg@xiph.org>2010-11-12 04:33:26 +0000
committerAlex Converse <alex.converse@gmail.com>2010-11-12 04:33:26 +0000
commit8455e8c7c0ad183e8904e583def669ba4b7b4c90 (patch)
tree29a3be3c8be9cd555996d7c9b898aa0f8b5bc995 /cmdutils.c
parent668673f10ce225d26a96f1aeb62066e8c641c85a (diff)
downloadffmpeg-8455e8c7c0ad183e8904e583def669ba4b7b4c90.tar.gz
vorbisdec: Fix floor1 decoding
An intermediate value in the floor 1 linear interpolation was overflowing resulting in obvious artifacts on some files. e.g. http://upload.wikimedia.org/wikipedia/commons/7/79/Big_Buck_Bunny_small.ogv Prior to this fix 87 out of 128 64kbit/s mono files decoded with ffmpeg have lower PEAQ ODG values than the same files decoded with libvorbis. With this fix none of that set have significantly worse ODG values than libvorbis. Fixes issue 2352 Patch by Gregory Maxwell <greg@xiph.org> Originally committed as revision 25724 to svn://svn.ffmpeg.org/ffmpeg/trunk
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